1 files changed, 173 insertions, 0 deletions
diff --git a/src/Authoring/Qt3DStudio/Palettes/TimelineGraphicsView/ui/RowTreeLabel.cpp b/src/Authoring/Qt3DStudio/Palettes/TimelineGraphicsView/ui/RowTreeLabel.cpp
new file mode 100644
index 00000000..de148af2
--- /dev/null
+++ b/src/Authoring/Qt3DStudio/Palettes/TimelineGraphicsView/ui/RowTreeLabel.cpp
@@ -0,0 +1,173 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "RowTreeLabel.h"
+#include "TimelineConstants.h"
+#include "TimelineItem.h"
+#include "RowTree.h"
+#include "StudioPreferences.h"
+
+#include <QtWidgets/qstyleoption.h>
+#include <QtGui/qevent.h>
+#include <QtGui/qtextcursor.h>
+
+RowTreeLabel::RowTreeLabel(QGraphicsItem *parent)
+    : QGraphicsTextItem(parent)
+    , m_locked(false)
+    , m_master(false)
+    , m_acceptOnFocusOut(true)
+{
+    setTextInteractionFlags(Qt::TextEditorInteraction);
+    setEnabled(false);
+    updateLabelColor();
+}
+
+QString RowTreeLabel::label() const
+{
+    return m_label;
+}
+
+void RowTreeLabel::setLabel(const QString &label)
+{
+    setPlainText(label);
+    if (m_label != label) {
+        m_label = label;
+        emit labelChanged(m_label);
+    }
+}
+
+void RowTreeLabel::setMaster(bool isMaster) {
+    if (m_master != isMaster) {
+        m_master = isMaster;
+        updateLabelColor();
+    }
+}
+
+void RowTreeLabel::setLocked(bool isLocked) {
+    if (m_locked != isLocked) {
+        m_locked = isLocked;
+        updateLabelColor();
+    }
+}
+
+RowTree *RowTreeLabel::rowTree() const
+{
+    return m_rowTree;
+}
+
+void RowTreeLabel::setRowTree(RowTree *row)
+{
+    m_rowTree = row;
+}
+
+int RowTreeLabel::type() const
+{
+    // Enable the use of qgraphicsitem_cast with this item.
+    return TimelineItem::TypeRowTreeLabel;
+}
+
+void RowTreeLabel::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    if (!m_rowTree->y()) // prevents flickering when the row is just inserted to the layout
+        return;
+
+    // Remove the HasFocus style state, to prevent the dotted line from being drawn.
+    QStyleOptionGraphicsItem *style = const_cast<QStyleOptionGraphicsItem *>(option);
+    style->state &= ~QStyle::State_HasFocus;
+
+    QGraphicsTextItem::paint(painter, option, widget);
+}
+
+void RowTreeLabel::focusOutEvent(QFocusEvent *event)
+{
+    if (m_acceptOnFocusOut)
+        validateLabel();
+    else
+        setPlainText(m_label);
+
+    // Remove possible selection and make disabled again
+    QTextCursor cursor = textCursor();
+    cursor.clearSelection();
+    setTextCursor(cursor);
+    setEnabled(false);
+    QGraphicsTextItem::focusOutEvent(event);
+    // Next time default to accepting
+    m_acceptOnFocusOut = true;
+}
+
+void RowTreeLabel::keyPressEvent(QKeyEvent *event)
+{
+    int key = event->key();
+    if (key == Qt::Key_Return || key == Qt::Key_Enter) {
+        m_acceptOnFocusOut = true;
+        clearFocus();
+        event->accept();
+        return;
+    } else if (key == Qt::Key_Escape) {
+        m_acceptOnFocusOut = false;
+        clearFocus();
+        event->accept();
+        return;
+    }
+
+    QGraphicsTextItem::keyPressEvent(event);
+}
+
+QRectF RowTreeLabel::boundingRect() const
+{
+    if (!m_rowTree)
+        return QGraphicsTextItem::boundingRect();
+
+    double w = m_rowTree->clipX() - x();
+    // Bounding rect width must be at least 1
+    w = std::max(w, 1.0);
+    return QRectF(0, 0, w, TimelineConstants::ROW_H);
+}
+
+void RowTreeLabel::validateLabel()
+{
+    QString text = toPlainText().trimmed();
+    if (text.isEmpty()) {
+        // Inform label was empty and return previous label
+        emit labelChanged("");
+        setLabel(m_label);
+        return;
+    }
+
+    setLabel(text);
+}
+
+void RowTreeLabel::updateLabelColor()
+{
+    if (m_locked)
+        setDefaultTextColor(CStudioPreferences::GetDisabledTextColor());
+    else if (m_master)
+        setDefaultTextColor(CStudioPreferences::GetMasterColor());
+    else
+        setDefaultTextColor(CStudioPreferences::GetNormalColor());
+}